diff --git a/Gemfile b/Gemfile
index 8ebaf5713..faa193965 100644
--- a/Gemfile
+++ b/Gemfile
@@ -17,6 +17,7 @@ gem "mimemagic"
 
 gem "nokogiri", (RUBY_VERSION >= "2.1" ? ">= 1.7.0" : "~> 1.6.8")
 gem "i18n", "~> 0.7.0"
+gem "ffi", "1.9.14", :platforms => :mingw if RUBY_VERSION < "2.0"
 
 # Request at least rails-html-sanitizer 1.0.3 because of security advisories
 gem "rails-html-sanitizer", ">= 1.0.3"